to answer everyones? the weisco pistons will have to be pressed on to the stock rods by a machine shop. nothing speacial they heat the rods a little, and press them in. price for the pistons from raceengineering probably $420 with rings. i've boosted 14psi on weisco and stock rods no problem for a yr. i blew this motor yes blew this motor from a serious tunning error, basically i wasn't getting no fuel preassure , in tampering with the Sfmu i forgot to tighten the static screw back down it got loose some how ,try to run 15psi with 30psi on of fuel preassure not pretty homie.craziest mistake costly misstake always make sure you have fuel preassure. i got the car home from the streetracez i took it apart the nextday, I put the weisco to a serious test the ringlands didn't break but the rings started to melt to the piston. luckily i know this motor inside and out. i could of bought another set of weisco but i decided not to be lazy this time and i took the whole motor apart got oversized jE pistons and eagle rods. now i just need some dyno time and some tunning with these 440z and Sfmu. if you have stock pistons there gonna crack eventually. built motors blow too from bad tunning but when they blow its not as bad as it seems. i rarely post on here. so straight up man if i were you if your only gonna boost 10psi get the weisco and put them on your stock rods. I live in SoCal too but i live up here in lancaster ,palmdale kinda far from you i think. but when you buy the pistons there gonna sell you the rings that go with those pistons. make sure you get the head resurfaced. I'm bout to pull the head off my car monday cause the valve guides or seals are starting to go bad. I'm gonna have the machine shop do a complete stock head rebuilt email me if you want ()